<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>jQuery语法</title>
    <script src="http://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script>
</head>
<body>
<script>

    //文档就绪事件
    $(function () {

        alert("jQuery已经准备就绪");

    })

</script>


</body>
</html>